| 高含盐污水雾化蒸发塔的设计及流场数值模拟 |
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| 引用本文： | 唐志伟,王菁菁,黄辉,聂超群.高含盐污水雾化蒸发塔的设计及流场数值模拟[J].环境工程,2017,35(7):27-32. |
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| 作者姓名： | 唐志伟 王菁菁 黄辉 聂超群 |
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| 作者单位： | 1. 中国石化石油勘探开发研究院,北京,100191;2. 中国科学院工程热物理研究所,北京100190;中国科学院大学,北京100049;3. 中国科学院工程热物理研究所,北京,100190 |
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| 摘 要： | 针对含盐量为7×104mg/L的油田高含盐污水,设计1套处理量为28.8 kg/h的雾化蒸发塔,估算出塔体高度及直径,从而得出适宜的进口空气流速。基于标准k-ε双方程模型和DPM模型,对所设计的雾化蒸发塔内液滴蒸发过程进行数值模拟,得到塔内流场分布特性及蒸发特性,通过随机轨道模型追踪了液滴颗粒运动轨迹及液滴Na Cl浓度变化。在算例工况下,塔内蒸发效率可达58.9%。
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| 关 键 词： | 设计计算 高含盐油田污水 雾化蒸发 数值模拟 |
DESIGN OF A SPRAY EVAPORATION TOWER FOR HIGH-SALINITY OILFIELD WASTEWATER AND NUMERICAL SIMULATION OF ITS FLOW FILED |
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| TANG Zhi-wei,WANG Jing-jing,HUANG Hui,NIE Chao-qun.DESIGN OF A SPRAY EVAPORATION TOWER FOR HIGH-SALINITY OILFIELD WASTEWATER AND NUMERICAL SIMULATION OF ITS FLOW FILED[J].Environmental Engineering,2017,35(7):27-32. |
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| Authors: | TANG Zhi-wei WANG Jing-jing HUANG Hui NIE Chao-qun |
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| Abstract: | As for the high-salinity oilfield wastewater with the salt content of 7 × 104 mg/L,a spray evaporation tower with capacity of 28.8 kg/h was designed,and the tower height and diameter was estimated.According to the design parameters of the tower,the appropriate inlet air flow was calculated.In order to obtain the flow field distribution and evaporation characteristics,the droplet evaporation process in the designed tower was simulated,based on the standard k-ε turbulence model and the DPM model.The droplet particle trajectory and NaCl concentration was tracked by adopting stochastic trajectory model.In the working.condition,the tower evaporation efficiency reached to 58.9％. |
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| Keywords: | design calculations high-salinity oilfield wastewater atomization and evaporation numerical simulation |
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